Noctua NF-A4X20 - 5V PWM 40x20mm Quiet Cooling Fan USB Style_USB-B It uses an ESP8266 Wi-Fi

It uses an ESP8266 Wi-Fi expansion board and serial port to communicate with the micro:bit

How it works

Although MQ gas sensors are cheap and convenient

We powered the demo with a Trinket - not included - so it all comes in a nice compact package

M5GO IoT Controller

Noctua NF-A4X20 - 5V PWM 40x20mm Quiet Cooling Fan USB Style_USB-B It uses an ESP8266 Wi-FiFeaturing advanced aerodynamic design measures such as Flow Acceleration Channels and an AAO frame, the NF A4x20 5V PWM is a PWM enabled 5V variant of Noctuas highly optimised, premium quality quiet 40x20mm fan. The custom designed NE FD3 PWM IC that integrates Smooth Commutation Drive technology and Noctuas reference class SSO2 bearings guarantee superb running smoothness and excellent long term stability. Topped off with modular cabling, the